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Finding the Third Proportional to 2,471 and 5,374

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Solution

The third proportional to 2,471 and 5,374 is: 11,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471 : 5,374 = 5,374 : x
  2. Step 2: Convert to fraction form
    2,471/5,374 = 5,374/x
  3. Step 3: Cross multiply
    2,471x = 5,374 × 5,374
  4. Step 4: Simplify right side
    2,471x = 28,879,876
  5. Step 5: Solve for x
    x = 28,879,876/2,471
  6. Step 6: Final answer
    x = 11,687.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.